I got 11 Phalanx henchmen with this expansion, but it says 10. Did I get an extra card? Wondering if maybe I'm missing one somewhere else now.
You just got 1 extra; count all of the other cards to check nothing is missing.
I got an extra card in Paint the town red. Counted everything, nothing missing. These things happen; we were lucky but some people have been known to be missing cards. Keep hold of it, perhaps if someone says they are missing a Phalanx card you'll get the chance to be a kind stranger and send them your spare!